A scheme based on coexistence of NSIS and RSVP for realization of end-to-end QoS provisioning

Realization of end-to-end Quality of Service (QoS) provisioning in a scheme plays a very important role in improving stability and quality of communication. Although simple data switching is possible between heterogeneous networks supporting different QoS signalling, end-to-end QoS provisioning can not be completed due to different rules in executing resource reservation. In this paper, a dual-stack scheme is designed with the mapping of the signalling formats between Resource Reservation Protocol (RSVP) and Next Steps in Signalling (NSIS) protocols. In this approach, relationship between corresponding fields of the two protocols is defined according to their signalling formats. The detailed mapping specification of the two signallings includes Common Header, Message Formats, Object Formats, etc. Based on this scheme, end-to-end resource reservation for QoS provisioning can be realized in heterogeneous networks, by recognizing signalling formats between different protocols.

I. Introduction

In recent years, there are many problems remaining unresolved when different kinds of wireless networks are integrated together seamlessly, such as mobility management, Quality-of Service (QoS), and AAA et al. How to provide end-to-end QoS provisioning for heterogeneous wireless networks is a key problem that need to be resolved immediately. In general, integrated QoS provisioning scheme is based on end-to-end situation. With the extension of application domain of networks and the appearance of new businesses, in heterogeneous wireless networks environment, the total process of transmission between the receiver and the sender for an operation may involve various network areas and types, such as access network, core network, and IP backbone network, et al. Different QoS schemes are required by different networks. Therefore, it is necessary to design effective end-to-end QoS provisioning scheme for negotiation of QoS demands and realization of end-to-end QoS provisioning, when data flows are transmitted and maintained in heterogeneous networks based on different QoS schemes.